The Southern Twenty-centimeter All-sky Polarization Survey (STAPS)

Details The Southern Twenty-centimeter All-sky Polarization Survey (STAPS) The Southern Twenty-centimeter All-sky Polarization Survey (STAPS)

Oct 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008atnf.prop.1710h&link_type=abstract

ATNF proposal P624, Semester: October, 2008

Computer Science

Performance

Galactic, Parkes

Scientific paper

The Southern Twenty-centimeter All-sky Polarization Survey (STAPS) is a piggyback project on the S-PASS survey (P560). STAPS surveys the polarized radio continuum sky from 1300 to 1800MHz at 15' resolution to probe Galactic magnetism through Faraday rotation, mostly at higher latitudes where Faraday rotation is modest. Combination of STAPS with S-PASS will significantly enhance the quality of obtainable rotation measures, especially at high latitudes. Furthermore, STAPS is envisioned to be an essential part of a global effort to map the polarized radio sky at almost contiguous frequencies from 80MHz to 2400MHz (also P617, PI Wolleben). With this frequency coverage, individual RM components along sightlines can be deconvolved with unprecedented RM resolution and dynamic range, enabling three-dimensional mapping of the Galactic magnetic field. The 1.4GHz H-OH receiver used for STAPS is placed off-axis next to the 2.3GHz S-PASS receiver, allowing simultaneous datataking in both surveys. The first observing run last semester was encouraging. On-the-fly checking of data looked good, including good performance of the quarter-wave plate across the band.

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